一种新型双染料敏化的非水溶性光致聚合物全息记录材料  

A Novel Two Dyes Co-sensitized Water-resisting Photopolymer for Holographic Recording

作　　者：李展华[1] 章鹤龄[1] 邵继宝[1] 徐向敏[1] 石磊[1] 

机构地区：[1]首都师范大学物理系,北京100048

出　　处：《首都师范大学学报（自然科学版）》2009年第4期16-20,25,共6页Journal of Capital Normal University：Natural Science Edition

基　　金：北京市教委资助项目(KM200610028003)

摘　　要：介绍了一种新型双染料敏化的非水溶性光致聚合物材料的制备及应用前景.材料能同时对红光和蓝光敏感,用红光和蓝光分别对材料曝光,测得两者的最大衍射效率分别76%和81%,相应的最大折射率调制度分别为0.0025和0.0021,说明该材料具有超高密度全息存储的潜力,并为下一步发展全色记录材料打下了良好的基础.存储实验表明,再现图像清晰明亮,图像间无串扰,适合双波长复用全息存储.稳定性验证表明,全息图具有良好的稳定性和耐候性,因此该材料是一种比较理想的全息记录材料.A novel type of water-resisting photopolymer co-sensitized by two dyes is presented. And its holographic characters and application prospect are studied. This material is sensitive to red light and blue light simultaneously. Diffraction efficiencies are 76% and 81% respectively, when exposed by red light and blue light respectively. And the corresponding maximum refractive index modulation are 0.002 5 and 0.002 1 respectively, which indicates that the photopolymer has potential ability of high density holographic storage. And this material also provides a sound basis for the next development of studying full-colour holographic recording material. There is no crosstalk among reconstruction images, which are clear and bright. So the photopolymer is promising to two-wavelength multiplexing holographic storage. Finally, the stability of hologram is tested. The results show that holograms have good stability and weather resisting property. So it is a kind of better holographic recording material.

关 键 词：非水溶性 光致聚合物 衍射效率 灵敏度 双波长敏感 

分 类 号：O631.24[理学—高分子化学] O438.1[理学—化学]